For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

_______________General Description

The MAX8867/MAX8868 low-noise, low-dropout linear

regulators operate from a 2.5V to 6.5V input and deliver

up to 150mA. Typical output noise for these devices is

150mA. The output voltage is preset to voltages in the

range of 2.5V to 5.0V, in 100mV increments. The

MAX8867 and MAX8868 are pin-compatible with the

MAX8863 and MAX8864, except for the BP pin.

Designed with an internal P-channel MOSFET pass

transistor, the MAX8867/MAX8868 maintain a low

100µA supply current, independent of the load current

and dropout voltage. Other features include a 10nA

logic-controlled shutdown mode, short-circuit and ther-

mal-shutdown protection, and reverse battery protec-

tion. The MAX8868 also includes an auto-discharge

function, which actively discharges the output voltage

to ground when the device is placed in shutdown. Both

devices come in a miniature 5-pin SOT23 package.

________________________Applications

Cellular Telephones

Modems

Cordless Telephones

Hand-Held Instruments

PCS Telephones

Palmtop Computers

PCMCIA Cards

Electronic Planners

____________________________Features

o Low 55mV Dropout at 50mA Output

(165mV at 150mA output)

o Low 85µA No-Load Supply Current

o Low 100µA Operating Supply Current

(even in dropout)

o Thermal-Overload and Short-Circuit Protection

o Reverse Battery Protection

o Output Current Limit

o Preset Output Voltages (±1.4% accuracy)

o 10nA Logic-Controlled Shutdown

Low-Noise, Low-Dropout,

150mA Linear Regulators in SOT23

________________________________________________________________

Maxim Integrated Products

1

GND

OUT

IN

15

BP

SHDN

MAX8867

MAX8868

SOT23-5

TOP VIEW

2

34

__________________Pin Configuration

19-1302; Rev 1; 3/98

PART**

MAX8867C/Dxy

MAX8867EUKxy-T

MAX8868C/Dxy

0°C to +70°C

-40°C to +85°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

Dice*

5 SOT23-5

Dice*

______________Ordering Information

___Expanded Ordering Information

*

**

xy is the output voltage code (see Expanded Ordering

Information table).

***

Other xy between 2.5V and 5.0V are available in 100mV incre-

ments. Contact factory for other versions. Minimum order

quantity is 25,000 units.

MAX8868EUKxy-T

-40°C to +85°C

5 SOT23-5

PRESET

OUTPUT

VOLTAGE

(V)

MAX886_EUK25

2.50

OUTPUT

VOLTAGE (xy)

CODE

ACAY

SOT TOP MARK

ACBF

MAX8867

MAX8868

MAX886_EUK28

2.80

ACAZ

ACBG

MAX886_EUK29

2.84

ACBA

ACBH

MAX886_EUK30

3.00

ACBB

ACBI

MAX886_EUK32

3.15

ACBC

ACBJ

MAX886_EUK33

3.30

ACBD

ACBK

MAX886_EUK36

3.60

ACCZ

ACDA

Other xy***

x.y0

—

—

MAX886_EUK50

5.00

ACBE

ACBL

MAX8867

MAX8868

INPUT

2.5V TO 6.5V

IN

OUT

SHDN

0.01

µF

1

µF

1

µF

OFF

ON

BP

GND

OUTPUT

PRESET

2.5V TO 5.0V

150mA

__________Typical Operating Circuit